Guys my Minigames Server is crash nearly every 5-10 mins Please help me i dont find what is problem about 30 days
[09:04:51] [Server thread/ERROR]: Encountered an unexpected exception
net.minecraft.server.v1_9_R1.ReportedException: Exception ticking world
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:787) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot.jar:git-Spigot-e6f93f4-ed60c01]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429) ~[?:1.8.0_91]
at java.util.HashMap$KeyIterator.next(HashMap.java:1453) ~[?:1.8.0_91]
at net.minecraft.server.v1_9_R1.PlayerChunkMap.flush(PlayerChunkMap.java:119) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:256) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:776) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
... 4 more
[09:04:51] [Server thread/ERROR]: Cause of unexpected exception was
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429) ~[?:1.8.0_91]
at java.util.HashMap$KeyIterator.next(HashMap.java:1453) ~[?:1.8.0_91]
at net.minecraft.server.v1_9_R1.PlayerChunkMap.flush(PlayerChunkMap.java:119) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:256) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:776) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) ~[spigot.jar:git-Spigot-e6f93f4-ed60c01]
at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot.jar:git-Spigot-e6f93f4-ed60c01]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
[09:04:51] [Server thread/ERROR]: This crash report has been saved to: /home/Serverlar/MiniGamesLobi1/./crash-reports/crash-2016-05-25_09.04.51-server.txt
Guys my Minigames Server is crash nearly every 5-10 mins Please help me i dont find what is problem about 30 days
And this Crah Report http://hastebin.com/uhupayamam.avrasm